Electronic sow feeding (ESF) systems allow individual sows to receive controlled feed portions in group housing, reducing aggression and competition while enabling the social benefits of group living.
Electronic sow feeding systems represent a significant advance in balancing the welfare benefits of group housing with the need for adequate individual nutrition. Without individual feeding control, dominant sows in groups can overconsume while subordinate animals are underfed, leading to both obesity-related problems and poor body condition. ESF eliminates this competition at the feeder while preserving the social environment that allows sows to perform natural behaviors. The main welfare challenge with ESF is the establishment period when new groups form, as fighting can be intense. Management strategies including providing adequate space, feed access, and visual barriers help minimize aggression. Regular body condition scoring remains essential to verify that ESF rations are meeting each sow's needs.